1 files changed, 2 insertions, 0 deletions

diff --git a/Gemfile b/Gemfile
index f22074b..47f12df 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,2 +1,4 @@
+source 'https://rubygems.org'
+
 gem 'rdf'
 gem 'rdf-rdfxml'